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Abstract
Chaenothecopsis quintralis from southwestern Argentina is described and illustrated as a new species in the family Mycocaliciaceae. It has been found in three localities in the Andean Patagonian temperate forests, growing strictly on dung of an endemic marsupial Dromiciops gliroides. The new species is distinguished by the hemispherical, black capitulum of ascoma, the presence of asci with croziers, one-celled brown ascospores, and its fimicolous habitat. Analysis of partial nuclear large subunit rDNA (LSU) sequences showed that this taxon is within Mycocaliciales.
Acknowledgments
We thank B. Callan (DAVFP Herbarium) for her intention to send to us the type material of M. viscinicola. Further thanks to Parques Nacionales (Argentina). Funds for this research were provided by Universidad Nacional del Comahue (UNComahue, 04/B140) to LEL and MIM, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET, PIP 11220090100207) to MIM and Fondo para la Investigación Científica y Tecnológica (FONCyT, PICT-1467) to RVR.